CN1516789A - Damping mechanism - Google Patents
Damping mechanism Download PDFInfo
- Publication number
- CN1516789A CN1516789A CNA038004631A CN03800463A CN1516789A CN 1516789 A CN1516789 A CN 1516789A CN A038004631 A CNA038004631 A CN A038004631A CN 03800463 A CN03800463 A CN 03800463A CN 1516789 A CN1516789 A CN 1516789A
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- Prior art keywords
- damping
- bow
- shaped part
- lever arm
- pedestal
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- 238000013016 damping Methods 0.000 title claims abstract description 276
- 230000007246 mechanism Effects 0.000 title claims abstract description 117
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 46
- 230000009471 action Effects 0.000 claims description 10
- 230000002265 prevention Effects 0.000 claims description 4
- BALXUFOVQVENIU-KXNXZCPBSA-N pseudoephedrine hydrochloride Chemical compound [H+].[Cl-].CN[C@@H](C)[C@@H](O)C1=CC=CC=C1 BALXUFOVQVENIU-KXNXZCPBSA-N 0.000 abstract 1
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- 229910000831 Steel Inorganic materials 0.000 description 2
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- 239000004677 Nylon Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000008485 antagonism Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000002783 friction material Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920006375 polyphtalamide Polymers 0.000 description 1
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Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H7/10—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley
- F16H7/12—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley
- F16H7/1209—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley with vibration damping means
- F16H7/1218—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley with vibration damping means of the dry friction type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H7/10—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley
- F16H7/12—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0802—Actuators for final output members
- F16H2007/081—Torsion springs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H7/0829—Means for varying tension of belts, ropes, or chains with vibration damping means
- F16H2007/084—Means for varying tension of belts, ropes, or chains with vibration damping means having vibration damping characteristics dependent on the moving direction of the tensioner
Abstract
An asymmetric damping mechanism (100) for use in a belt tensioner. The dampi ng mechanism comprises two parts (210, 220) having substantially similar arcuat e shapes for engaging a tensioner. The first part (210) is in contact with the second part (220) at a pivotable point of contact (216). The point of contac t (216) position is determined according to the desired asymmetric damping factor. The first part (210) is also in contact with a spring. The second pa rt (220) is in contact with a tensioner arm. The damping mechanism also compris es two damping shoes, each having a damping band (213, 215). The damping band i s joined to the damping shoe by a plurality of vertical grooves on the damping shoe cooperating with a plurality of grooves on the damping band. The dampin g mechanism has an asymmetric damping factor in the range of approximately 1.5 to 5.
Description
Technical field
The present invention relates to damping mechanism, more particularly.The asymmetric damping mechanism that relates to stretcher.
Background technique
Belt tightener is used for belt is added a load.In general, described belt is used for motor and is used for driving the supplementary equipment that links with motor.For example, air condition compressor and alternator are exactly two supplementary equipment that belt drive system may drive.
Belt tightener comprises with journal rest in a belt pulley of lever arm.Between lever arm and pedestal, there is a spring to be connected.Described spring also may engage with a damping mechanism.Described damping mechanism comprises the rubbing surface that contacts with each other.Described damping mechanism suppresses the lever arm swing that belt transmission causes.Therefore, can improve the life expectance of belt like this.
Authorized the U. S. Patent 5 of Serkh in 1997,632, No. 697 is exactly the typical case of this damping mechanism, this patent description the spring-actuated damping mechanism of a kind of usefulness, this damping mechanism provides the also big normal force of power that puts on the brake shoe that engages with Cylinder shape constructional element than spring.
Can also be with reference to the U.S. Patent Application Serial 09/861,338 of common pendent application on May 18 calendar year 2001, this patent application discloses a kind of stretcher with damping mechanism.
What need is that asymmetric damping constant is greatly about the damping mechanism of 1.5 to 5.0 scopes.What need is the stretcher with damping mechanism, and this damping mechanism comprises two parts that usefulness is pivotally connected.The present invention meets these requirements.
Summary of the invention
Main aspect of the present invention provides the damping mechanism of a kind of asymmetric damping constant in 1.5 to 5.0 scopes.
Another aspect of the present invention provides a kind of stretcher with damping mechanism, and its damping mechanism comprises two parts that usefulness is pivotally connected.
Description of drawings
Other aspects of the present invention will be below explanation and accompanying drawing in point out or illustrate, in the accompanying drawing:
Fig. 1 is the top perspective view of damping mechanism of the present invention;
Fig. 2 is the sectional view that damping mechanism of the present invention is cut open along the 2-2 line of Fig. 1;
Fig. 3 is the top perspective view of damping mechanism of the present invention;
Fig. 4 is the sectional view that damping mechanism of the present invention is cut open along the 4-4 line of Fig. 2;
Fig. 5 is the top perspective view of the locking framework on the damping brake shoe of damping mechanism of the present invention;
Fig. 6 is the top perspective view of the locking framework on the damped ring of damping mechanism of the present invention;
Fig. 7 is the top perspective view of the damping mechanism of prior art;
Fig. 8 is the top perspective view of the damping mechanism damping brake shoe of prior art;
Fig. 9 is the top perspective view of the damping mechanism damped ring of prior art;
Figure 10 is the schematic representation that acts on the power on the damping mechanism;
Figure 11 is the sectional view of cutting open along the 11-11 line of Figure 12 that acts on the power on the stretcher;
Figure 12 is the planimetric map that acts on the power on the stretcher;
Figure 13 is the schematic representation that acts on the power on the damping mechanism;
Figure 14 is the sectional view of cutting open along the 14-14 line of Figure 15 that acts on the power on the stretcher;
Figure 15 is the planimetric map that acts on power on the stretcher;
Figure 16 is the exploded view with stretcher of damping mechanism;
Figure 17 is the exploded view with stretcher of damping mechanism.
Embodiment
Fig. 1 is the top perspective view of damping mechanism of the present invention.Described damping mechanism is used for belt tightener, sees Figure 17.Described belt tightener passes through with belt pulley and the belt lacing of journal rest in lever arm.Described stretcher is used for belt is applied predetermined load and suppresses the swing of belt.
Described damping mechanism suppresses the swing of stretcher lever arm.Described lever arm is because the variation of working state, for example, and the variation of load, and the motion that both direction takes place is promptly swung.In order to eliminate this energy of belt system, damping is absolutely necessary, thereby, guarantee stretcher life-span and its working efficiency of raising to prolong belt as far as possible working properly.
More particularly, damping mechanism of the present invention is shown among Fig. 1.Damping mechanism 100 comprises damped ring 102.Damped ring 102 is connected in the outer arcuate surfaces 104 of damping brake shoe 101.The acceptance division 103 of spring or biasing member is included in the groove in the damping brake shoe 101.Hold helical spring mounting end (not shown) in the described acceptance division 103 referring to the label 500 of Figure 15.Surface 105 screwed joint with spring that is in operation provides supporting.
Damped ring 102 comprises the lubricating plastic of nylon, polyamide, PPA polypropylene adipate and so on.
Fig. 2 is the sectional view that damping mechanism of the present invention is cut open along the 2-2 line of Fig. 1.Annular incision 106 extends around the excircle of outer arcuate surfaces 104.Flange or projection 107 are extended around damping brake shoe 101 parts periphery.Annular incision 106 plays the effect that damped ring 102 is fixed to damping brake shoe 101 with projection 107.
Fig. 3 is the top perspective view of another damping mechanism.Damping mechanism 200 of the present invention comprises first bow-shaped part 210 and second bow-shaped part 220.First bow-shaped part 210 has one spring end inserted spring acceptance division 211 in it, sees Figure 12.The wall of described spring acceptance division has maximum thickness 211a in the zone that contacts with spring.Described wall 211a from contact area along with one or two direction of extending (when when both direction extends) attenuate gradually.By comparison, the thickness of this wall various piece of existing damping mechanism then is the same.
First bow-shaped part 210 comprises damped ring 213, and described damped ring is fixed in damping brake shoe 212.Second bow-shaped part 220 comprises damped ring 215, and described damped ring is fixed in damping brake shoe 214.
First bow-shaped part 210 forms contacting of pivoting at point of contact 216 with second bow-shaped part.Point of contact 216 comprises the end 228 of damping brake shoe 212 and the end 219 of damping brake shoe 214.Point of contact 216 lever arm spin axis R-R (the seeing Figure 11) width W that strides across each damping brake shoe relatively changes to maximum radius from least radius.
In order to obtain desired asymmetric damping constant, point of contact 216 will be positioned on the predetermined radial distance with lever arm spin axis R-R.Point of contact 216 shown in Fig. 3 causes the asymmetric damping constant maximum of the operating damping mechanism of stretcher in the least radius position.Point of contact 216 can be disposed at outer radius 288 places, compares with above-mentioned least radius position, and this can reduce asymmetric damping constant.
In another structure, the end 218 of first bow-shaped part 210 contacts with the end 217 of second bow-shaped part.In this embodiment, used a spring (not shown), the used spring of the direction of its spiral and the embodiment among Fig. 3 is opposite.Thereby, by point of contact is transformed into the other end from an end of first bow-shaped part and second bow-shaped part, both can use left-handed spring, also can use the dextrorotation spring instead.
Friction material manufacturing damped ring 213,215 usefulness such as plastics, phenolic plastic and the metal.The working surface 230,231 of damped ring 213,215 pressurized under the effect of spring slidably engages with stretcher pedestal or each self-forming of arm, sees Figure 12 and Figure 15.When sliding, damped ring produces friction damping power on described pedestal or arm.
212,213 each the personal structural material manufacturing such as steel or moulding plastics of damping brake shoe.Each damping brake shoe can be used the metallic dust method of forming, die cast method, injection moulding or similarly method manufacturing.Operable material comprises steel, aluminium (being used for low load part), adds the thermoplastic and the suitable with it material of various fillers.
The material thickness of the damped ring 215 of second bow-shaped part is less than the material thickness of the damped ring 213 of first bow-shaped part.Done two advantages like this: the first, increase the size of hooking of spring, thereby, can use bigger spring; The second, because second portion 220 loads of damping mechanism can make equate two-part working life greater than the reduced thickness of first portion's 210, the first damped rings 213.
Fig. 4 is the sectional view that another damping mechanism is cut open along the 4-4 line in Fig. 3.Annular tangent plane 221 extends around the periphery of damping brake shoe 212.Projection 222 extends around the outer periphery of damping brake shoe 212.Annular tangent plane 223 extends around the outer periphery of damping brake shoe 214.Projection 224 is extended around the part periphery of damping brake shoe 214.Annular tangent plane 221,223 makes up with projection 222,224 respectively, plays the effect that damped ring 213,215 is connected with damping brake shoe 212,214 respectively with mechanical means.
Fig. 5 is the top perspective view of the locking framework on the damping brake shoe of damping mechanism of the present invention.Locking framework 300 is connected to damping brake shoe 101 on the damped ring 102, sees Fig. 6.Locking framework 300 comprises a plurality of vertical groove 110 on the arc outer gearing surface 111 of damping brake shoe 101.Annular tangent plane 112 is located at the top edge of arcuate outer surface 111 to strengthen interconnecting between damped ring 102 and the damping brake shoe 101.Therefore, the bump 227 of damped ring 102 engages with annular tangent plane 112.The locking framework of disclosed a plurality of grooves is improved the connection between described damping brake shoe and the damped ring, and is firm and even.The friction load that makes that this connection is in operation is distributed to damped ring 102, thereby compares with existing damped ring, can prolong operating life.
Fig. 6 is the top perspective view of damped ring locking framework of the present invention.The damped ring of locking framework 300 partly comprises a plurality of spaced vertical rib 120 on the mating surface 121 in damped ring 102 arc.The rib 120 of damped ring 102 meshes with the groove 110 of damping brake shoe 101 with working in coordination.Projection 228 extends upward from the bottom 229 of damped ring 102.The suprabasil recess of projection 228 and damping brake shoe 101 or pit 231 are worked in coordination and are meshed, further fixing damped ring 102.
Locking framework of the present invention has reduced the weakening to the damping brake shoe widely, and therefore, damping mechanism of the present invention is much firmer than existing damping mechanism.Because the distribution of the power of described locking framework improves the load distribution on the damping brake shoe, the load state on damping brake shoe and the damped ring also has many improvement.
Fig. 7 is the top perspective view of existing damping mechanism.The damped ring DB of prior art is connected with the damping brake shoe DS of prior art.Little lug T is connected to described damping brake shoe DS (see figure 8) to described damped ring DB (see figure 9) by mechanical means.
Fig. 8 is the top perspective view of damping brake shoe of the damping mechanism of prior art.Damping brake shoe DS comprises a plurality of groove S.Groove S admits little lug T, and damped ring DB is connected on the damping brake shoe DS with mechanical means, sees Fig. 9.
Fig. 9 is the top perspective view of damped ring of the damping mechanism of prior art.Damped ring DB comprises a plurality of little lug T.An each little lug T and corresponding groove S damped ring DB that works in coordination is connected to damping brake shoe DS.
Figure 10 is the schematic representation that acts on the power of damping mechanism.Shown damping mechanism is illustrated embodiment in Fig. 3 and Fig. 4.Power F1 is that spring terminal 500 contacts the spring contact reaction force that causes with spring acceptance division 211.Spring terminal 500 contacts with spring acceptance division 211 on two points, produces two gangs of reaction force F1.F2 is the quadrature reaction force that acts on damping area 230.F3 is the tangent frictional force that acts on damping area 230.F8 is the quadrature reaction force that acts on damping area 231.F9 is the tangent frictional force that acts on damping area 231.F4 is that damping brake shoe 214 contacts the quadrature reaction force that passes to damping mechanism bow-shaped part 220 and be applied to it with lever arm 1030, sees Figure 16.
Asymmetric damping constant is the function that lever arm 1030 moves the difference of the frictional force F3 of generation and F9.Be in operation, the quadrature reaction force F8 that acts on damping area 231 is greater than the quadrature reaction force F2 that acts on damping area 230.More particularly, when lever arm 1030 edge+A directions moved, friction force vector F3 and F9 worked as shown in figure 10.When lever arm 1030 edge-A directions move, the counter-rotating of the direction of friction force vector F3 and F9.The change of friction force vector F3 and F9 direction causes that the power that acts on the damping area 230,231 changes.It is big when therefore, the quadrature reaction force F4 that acts on damping mechanism moves than edge+A direction when lever arm edge-A direction moves.Correspondingly, power F4 is big when ratio edge+A direction moves when described lever arm edge-A direction moves to the torsion that lever arm produces with respect to lever arm spin axis R-R.The value of the torsion when described lever arm edge-A direction moves above it is greater than the value of the torsion of two power F1 generations.We call the difference of these two torque values-damping moment of torsion on the A direction.The value of the torsion when described arm edge+A direction moves above it is less than the value of the torsion of two power F1 generations.We call the difference of these two torque values+damping moment of torsion on the A direction.-A direction is exactly asymmetric damping constant with the ratio of+A direction damping torque value.
Asymmetric damping constant can be according to the radial position adjustment of the point of contact 216 shown in Fig. 3 and Fig. 4.The position of point of contact 216 is diametrically the closer to the spin axis of lever arm 1030, and asymmetric damping constant is big more.Otherwise, when point of contact 216 diametrically when the spin axis of lever arm 1030 is far away more, dissymmetry coefficient will be more little.By moving radially the position of point of contact 216, dissymmetry coefficient can change between about 1.5 to 5.
Figure 11 is the sectional view that acts on the power on the stretcher that dissects along the 11-11 line among Figure 12.Power F7 is the quadrature reaction force that acts on described lever arm on the damping mechanism point of contact.Power F7 and the power F4 equivalence that acts on damping mechanism.F6 is the pivot axle sleeve reaction force that acts between axle sleeve 1040 and the lever arm 1030 at the interface.F5 is the hub load that the load on the belt B causes, sees Figure 12.
Figure 12 is the top view that acts on the power of stretcher.Shown in Figure 12 is the top view of the various power that illustrate in Figure 11.
Figure 13 is the schematic representation that acts on the power of damping mechanism.Described damping mechanism is exactly shown in Fig. 1 and Fig. 2.Power F11 is that end 500 contacts the spring contact reaction force that causes with spring acceptance division 103.Spring end 500 contacts with the spring acceptance division on two points and produces two gangs of power F11 as can be seen.F12 is the quadrature reaction force that acts on damping area 109.F13 is the tangent frictional force that acts on damping area 109.F14 contacts the reaction force on the damping mechanism part 102 of acting on that transmits with lever arm 2030, see Figure 17.
Asymmetric damping constant is that lever arm 2030 moves and causes that frictional force is different and produce.More particularly, lever arm to+F13 worked as shown in figure 13 when the A direction moved, and when lever arm to-the running direction of F13 was opposite when the A direction moved.F13 changes the power that acts on the damping area 109 in the change on the direction.Therefore, the power F14 on the described damping mechanism lever arm 2030 to+when the A direction moves than described lever arm to-the A direction is big when moving.Correspondingly, F14 with respect to lever arm spin axis R-R result from the lever arm torsion lever arm to+when the A direction moves than to-the A direction is big when moving.The value of the torsion that described lever arm produces greater than two spring force F11 to the value of+torsion when the A direction moves above it.We call the difference of these two torque values+damping moment of torsion on the A direction.The value of the torsion that described arm produces less than two spring force F11 to the value of-torsion when the A direction moves above it.We call the difference of these two torque values-damping moment of torsion on the A direction.+ A direction is exactly asymmetric damping constant with the ratio of-A direction damping torque value.
The sectional view of Figure 14 power that acts on stretcher that to be Figure 15 cut open along the 14-14 line.Power F17 is the quadrature reaction force that acts on the damping mechanism point of contact.F16 is the pivot axle sleeve reaction force that acts between axle sleeve 1040 and the lever arm 1030 at the interface.F15 is that belt B goes up the hub load that load causes.
Figure 15 is the planimetric map that acts on the power of stretcher.Shown in Figure 15 is the top view of the power shown in Figure 14.
Figure 16 is the exploded view with stretcher of damping mechanism.Damping mechanism 200 is to connect projection 1031 and lever arm 1030 engagements.The biasing parts be spring 1020 as in this explanation other local said, an end is connected in pedestal 1010, the other end is connected in the spring acceptance division 211 of damping mechanism.Lever arm 1030 rotatably is connected in pedestal 1010 by axle sleeve 1040.Be covered with dust and 1050 prevent that exterior materials in service from entering stretcher.Belt pulley 1060 is connected on the lever arm 1030 with axle journal by bearing 1070.The belt (not shown) engages with pulley surface 1061.
The fastenings of bearing 1070 usefulness such as bolt connects.Internal surface 1011 slip joint of damping mechanism surface 230,231 and stretcher pedestal 1010.
Connect projection 1031 and be in operation and 212 engagements of damping brake shoe, thereby pedestal internal surface 1011 is moved on damping mechanism surface 230.
Figure 17 is the exploded view with stretcher of damping mechanism.Damping mechanism 100 is connecting projection 2031 places and lever arm 2030 engagements.The biasing parts are that spring 2020 end as other places in this explanation are said is connected in pedestal 2010, and the other end is connected in the spring acceptance division 103 of damping mechanism.Lever arm 2030 rotatably is connected in pedestal 2010 by axle sleeve 2040.Be covered with dust and 2050 prevent that exterior materials in service from entering stretcher.Belt pulley 2060 is connected on the lever arm 2030 with axle journal by bearing 2070.The belt (not shown) engages with pulley surface 2061.
The fastenings of bearing 2070 usefulness such as bolt 2080 connects.Internal surface 2011 slip joint of damping mechanism surface 109 and stretcher pedestal 2010.
Connect projection 2031 and be in operation and damping mechanism 100 engagements, thereby pedestal internal surface 2011 is moved on damping mechanism surface 109.
Though a kind of form of the present invention only has been described here, for those skilled in the art, clearly can have fastened in the pass of structure and component and make many variations in the spirit and scope of the present invention that do not break away from here explanation.
Claims
(according to the modification of the 19th of treaty)
1 one kinds of damping mechanisms comprise:
Have first bow-shaped part of rubbing surface, described rubbing surface is connected in the damping brake shoe with a plurality of grooves;
Have second bow-shaped part of rubbing surface, described rubbing surface is connected in the damping brake shoe with a plurality of grooves;
Described first bow-shaped part engages with the arcuate surfaces that second bow-shaped part matches with;
Described first bow-shaped part has and can make along first moving direction unequal with the power that applies on the described arcuate surfaces that is mated along second moving direction in the power that applies on the described arcuate surfaces that is mated around engaging of pivoting and rotate with second bow-shaped part.
2 one kinds of stretchers comprise:
A pedestal;
The lever arm that can pivotally engage with described pedestal;
A belt pulley that is connected with described lever arm with axle journal;
A damping mechanism that engages with described lever arm and engage with described pedestal;
Described damping mechanism comprises first bow-shaped part with first damping area;
Second bow-shaped part with second damping area;
Described first bow-shaped part and second bow-shaped part are sliding engaged to the surface of matching on the described pedestal;
Described first bow-shaped part and second bow-shaped part have the joint that can pivot, and the power that the described lever arm of prevention that makes described first bow-shaped part and second bow-shaped part apply along first moving direction moves is unequal with the power that the described lever arm of prevention that applies along second moving direction moves;
Described first bow-shaped part comprises the first damping brake shoe;
Described second bow-shaped part comprises the second damping brake shoe;
Described first damping area meshes with a plurality of vertical parts that match on the Surface of action and the described first damping brake shoe;
Biasing parts that engage with described damping mechanism and pedestal;
Described damping mechanism has asymmetric damping constant.
3 (cancelling).
4 (cancelling).
5 stretchers according to claim 2 is characterized in that the described joint that pivots is from the spin axis radial arrangement of described lever arm.
6 according to claim 2 stretcher, it is characterized in that described asymmetric damping constant is in about scope of 1.5 to 5.
7 (cancelling).
8 (cancelling).
9 stretchers according to claim 2 is characterized in that also comprising, described second damping area is with a plurality of vertical parts that match on the Surface of action and the engagement of the described second damping brake shoe.
10 1 kinds of stretchers, it comprises:
A pedestal;
The lever arm that can pivotally engage with described pedestal;
A belt pulley that is connected with described lever arm with axle journal;
Reach and device described pedestal engagement, that be used for the motion of damping lever arm with described lever arm engagement;
First bow-shaped part with first damping area;
Second bow-shaped part with second damping area;
A surface engagement that matches on described first bow-shaped part and second bow-shaped part and the described pedestal;
Described first bow-shaped part and second bow-shaped part have a bonding point that pivots, and make described first bow-shaped part and second bow-shaped part unequal with the damping force that applies to second moving direction along the damping force that first moving direction applies;
Described first bow-shaped part comprises the first damping brake shoe;
Described second bow-shaped part comprises the second damping brake shoe;
Described first damping area meshes with a plurality of parts that match on the mating face and the first damping brake shoe;
With the device engagement of described resistance and lever arm motion again with described pedestal engagement, be used for biased device;
Describedly be used for the device that the damping lever arm moves asymmetric damping constant is arranged.
11 (cancelling).
12 (cancelling).
13 stretchers according to claim 10 is characterized in that described rotating bonding point is from the spin axis radial arrangement of lever arm
14 stretchers according to claim 10 is characterized in that described asymmetric damping constant is in about scope of 1.5 to 5.
15 (cancelling).
16 (cancelling).
17 stretchers according to claim 10 is characterized in that described second damping area is with a plurality of parts that match on the Surface of action and the engagement of the described second damping brake shoe.
18 stretchers according to claim 17 is characterized in that described biased device comprises spring.
19 (cancelling).
20 (cancelling).
21 (cancelling).
22 (cancelling).
23 (cancelling).
24 (cancelling).
25 1 kinds of stretchers, it comprises:
A pedestal;
The lever arm that can pivotally be installed on described pedestal;
A belt pulley that is connected in described lever arm with axle journal;
One with described lever arm and the damping mechanism that engages with described pedestal;
Described damping mechanism comprises a damping area and the damping brake shoe with the engagement of the parts that match on the Surface of action;
Biasing parts that engage with described damping mechanism and described pedestal;
Described damping mechanism has asymmetric damping constant.
26 stretchers according to claim 25 is characterized in that described damping mechanism also comprises a biasing parts acceptance division, makes described biasing parts engage with described damping mechanism, thereby has a pair of reaction force to pass to described damping mechanism on two points.
27 stretchers according to claim 25 is characterized in that described asymmetric damping constant is in about scope of 1.5 to 5.
28 stretchers according to claim 25 is characterized in that also comprising that being used on the described damping mechanism support a face of a described biasing parts part.
29 1 kinds of damping mechanisms comprise:
An arc damping brake shoe;
Damped ring by locking framework and the engagement of described damping brake shoe, the described locking framework antagonism frictional force that passes to described damped ring in service.
30 damping mechanisms according to claim 29 is characterized in that also comprising from described damped ring and extend, are used for a projection with the recess that the matches engagement of described damping brake shoe.
31 damping mechanisms according to claim 29, a bump that it is characterized in that also being included in the described damped ring is used for and described damping brake shoe engagement.
32 damping mechanisms according to claim 30 is characterized in that described damping brake shoe also comprises a surface of support spring coil.
33 damping mechanisms according to claim 30 is characterized in that described damping brake shoe also comprises a spring acceptance division, and described spring acceptance division has two points that contact with spring.
34 damping mechanisms according to claim 30 is characterized in that described locking framework comprises groove and the rib that matches.
35 damping mechanisms according to claim 29 is characterized in that also comprising:
The second arc damping brake shoe;
By second damped ring of second locking framework and described second damping brake shoe engagement, it is relative with the frictional force that passes to second damped ring in service that described second locking framework is set as.
36 damping mechanisms according to claim 35 is characterized in that also comprising from described second damped ring and extend a projection that the recess that matches meshes that is used for the described second damping brake shoe.
37 damping mechanisms according to claim 35 is characterized in that also being included in being used for and the engagement of the described second damping brake shoe of a bump in described second damped ring.
38 damping mechanisms according to claim 35 is characterized in that also comprising:
The damping brake shoe engages with the described second damping brake shoe on point of contact;
The spin axis that described point of contact is disposed at lever arm has a distance diametrically, obtains asymmetric damping constant with this.
39 damping mechanisms according to claim 38 is characterized in that described asymmetric damping constant is in about scope of 1.5 to 5.
40 damping mechanisms according to claim 35 is characterized in that described locking framework comprises groove and the rib that matches.
41 1 kinds of stretchers, it comprises:
A pedestal;
The lever arm that can pivotally engage with described pedestal;
A belt pulley that is connected with described lever arm with axle journal;
One engage with described lever arm and with the damping mechanism of described pedestal frictional engagement;
Described damping mechanism has a damping brake shoe by the engagement of the groove on the Surface of action and damped ring, and it is relative with the direction of the frictional force that passes to described damped ring in service that described groove is oriented;
A spring that engages with described damping brake shoe and described pedestal;
Described damping mechanism has asymmetric damping constant.
42 stretchers according to claim 41 is characterized in that described damping brake shoe also comprises a spring acceptance division, and described spring acceptance division has two points that contact with spring end, thereby produces a pair of reaction force.
43 stretchers according to claim 41 is characterized in that described damping mechanism also comprises the projection of extending the recess engagement that is used for cooperating with described damping brake shoe from described damped ring.
44 stretchers according to claim 41 is characterized in that described damping mechanism comprises that also a bump of described damped ring is used for and described damping brake shoe engagement.
45 stretchers according to claim 41 is characterized in that described asymmetric damping constant is in about scope of 1.5 to 5.
Claims (24)
1 one kinds of damping mechanisms comprise:
First bow-shaped part with rubbing surface;
Second bow-shaped part with rubbing surface;
Described first bow-shaped part engages with the arcuate surfaces that second bow-shaped part matches with;
Described first bow-shaped part has engaging of can pivoting with second bow-shaped part, makes along the power on the arcuate surfaces that puts on described cooperation on first moving direction with unequal in the power that puts on second moving direction on the described arcuate surfaces that matches.
2 one kinds of stretchers comprise:
A pedestal;
The lever arm that can pivotally engage with described pedestal;
A belt pulley that is connected with described lever arm with axle journal;
A damping mechanism that had not only engaged but also engaged with described pedestal with described lever arm;
Biasing parts that engage with described damping mechanism and pedestal;
Described damping mechanism has asymmetric damping constant.
3 stretchers according to claim 2 is characterized in that described damping mechanism also comprises a damping area with described pedestal frictional engagement, with the motion of the described lever arm of damping.
4 stretchers according to claim 3 is characterized in that described damping mechanism also comprises:
First bow-shaped part with first damping area;
Second bow-shaped part with second damping area;
The surperficial slip joint of working in coordination on described first bow-shaped part and second bow-shaped part and the described pedestal;
Described first bow-shaped part and second bow-shaped part can pivotally engage, and the power that the described lever arm of prevention that described first bow-shaped part and second bow-shaped part apply along first moving direction moves is unequal with the power that the described lever arm of prevention that applies at second movement direction moves.
5 stretchers according to claim 4 is characterized in that the described joint that pivots is from the spin axis radial arrangement of described lever arm.
6 according to claim 2 stretcher, it is characterized in that described asymmetric damping constant is in about scope of 1.5 to 5.
7 stretchers according to claim 4 is characterized in that described first bow-shaped part comprises that the first damping brake shoe and second bow-shaped part comprise the second damping brake shoe.
8 stretchers according to claim 7 is characterized in that described first damping area is with several vertical work in coordination parts and the engagements of the described first damping brake shoe on the Surface of action.
9 stretchers according to claim 8, it comprises that also second damping area is with several vertically work in coordination parts and the engagements of the described second damping brake shoe on the Surface of action.
10 1 kinds of stretchers comprise:
A pedestal;
The lever arm that can pivotally be connected with described pedestal;
A belt pulley that is connected with described lever arm with axle journal;
Reach and device described pedestal engagement, that be used for the motion of damping lever arm with described lever arm engagement;
With the device engagement of described damping lever arm motion again with described pedestal engagement, be used for biased device;
The described device that is used for the motion of damping lever arm has asymmetric damping constant.
11 stretchers according to claim 10 is characterized in that the described device that is used for the motion of damping lever arm has a damping area, with described pedestal frictional engagement, moves to stop described lever arm.
12 stretchers according to claim 11 is characterized in that the described device that is used for the motion of damping lever arm also comprises:
First bow-shaped part with first damping area;
Second bow-shaped part with second damping area;
The surface engagement that matches on described first bow-shaped part and second bow-shaped part and the described pedestal;
Described first bow-shaped part and second bow-shaped part have a bonding point that can pivot, and make win bow-shaped part and second bow-shaped part unequal with the damping force that applies on second movement direction along the damping force that first moving direction applies.
13 stretchers according to claim 12 is characterized in that described rotating bonding point is from the spin axis radial arrangement of lever arm.
14 stretchers according to claim 10 is characterized in that described asymmetric damping constant is in about scope of 1.5 to 5.
15 stretchers according to claim 12 is characterized in that: described first bow-shaped part comprises the first damping brake shoe; Second bow-shaped part comprises the second damping brake shoe.
16 stretchers according to claim 15 is characterized in that described first damping area is with a plurality of vertical parts that match on the Surface of action and the engagement of the described first damping brake shoe.
17 stretchers according to claim 16 is characterized in that described second damping area is with a plurality of vertical parts that match on the Surface of action and the engagement of the described second damping brake shoe.
18 stretchers according to claim 17 is characterized in that describedly being used for biased device and comprising spring.
19 1 kinds of stretchers comprise:
A pedestal;
The lever arm that can pivotally engage with described pedestal;
A belt pulley that is connected with described lever arm with axle journal;
A damping mechanism that engages with described lever arm and engage with described pedestal;
Biasing parts that engage with described damping mechanism and pedestal;
Described damping mechanism has asymmetric damping constant.
20 stretchers according to claim 19 is characterized in that described damping mechanism also comprises:
One with described pedestal frictional engagement to stop the damping area of described lever arm motion;
A biasing member acceptance division that on two points, closes with the damping mechanism termination, thus there are two strands of reaction forces to pass to described damping mechanism;
A surface that is used to support the biasing parts.
21 stretchers according to claim 20 is characterized in that described damping mechanism also comprises:
One basic is circle and the bow-shaped part with a damping area;
Be connected bump bond on described bow-shaped part and the described lever arm.
22 stretchers according to claim 19 is characterized in that described asymmetric damping constant is in about scope of 1.5 to 5.
23 stretchers according to claim 21 is characterized in that described bow-shaped part comprises a damping brake shoe.
24 stretchers according to claim 23 is characterized in that described damping area meshes with a plurality of vertical parts that match on the Surface of action and described damping brake shoe.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/147,183 US7004863B2 (en) | 2002-05-15 | 2002-05-15 | Damping mechanism |
| US10/147,183 | 2002-05-15 | ||
| PCT/US2003/012374 WO2003098071A1 (en) | 2002-05-15 | 2003-04-18 | Damping mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1516789A true CN1516789A (en) | 2004-07-28 |
| CN100489344C CN100489344C (en) | 2009-05-20 |
Family
ID=29418964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB038004631A Expired - Lifetime CN100489344C (en) | 2002-05-15 | 2003-04-18 | Damping mechanism and tensioner with damping mechanism |
Country Status (16)
| Country | Link |
|---|---|
| US (2) | US7004863B2 (en) |
| EP (1) | EP1504204B1 (en) |
| JP (1) | JP4009782B2 (en) |
| KR (2) | KR100649075B1 (en) |
| CN (1) | CN100489344C (en) |
| AT (1) | ATE529660T1 (en) |
| AU (1) | AU2003228632B2 (en) |
| BR (1) | BRPI0303389B1 (en) |
| CA (1) | CA2448919C (en) |
| ES (1) | ES2375355T3 (en) |
| HU (1) | HUP0700112A2 (en) |
| PL (1) | PL208791B1 (en) |
| RU (1) | RU2258163C2 (en) |
| TR (1) | TR200302342T1 (en) |
| TW (1) | TWI223695B (en) |
| WO (1) | WO2003098071A1 (en) |
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| CN103089943B (en) * | 2011-10-29 | 2015-12-02 | 盖茨优霓塔传动系统（上海）有限公司 | Stretcher |
| CN103089943A (en) * | 2011-10-29 | 2013-05-08 | 盖茨优霓塔传动系统（上海）有限公司 | Tensioner |
| WO2013060276A1 (en) * | 2011-10-29 | 2013-05-02 | 盖茨优霓塔传动系统（上海）有限公司 | Tensioner |
| US11078993B2 (en) | 2012-12-26 | 2021-08-03 | Litens Automotive Partnership | Orbital tensioner assembly |
| CN103775582A (en) * | 2014-01-10 | 2014-05-07 | 洛阳理工学院 | Chain tensioning mechanism |
| US10520066B2 (en) | 2014-06-26 | 2019-12-31 | Litens Automotive Partnership | Orbital tensioner assembly |
| CN104179906A (en) * | 2014-08-08 | 2014-12-03 | 莱顿汽车部件（苏州）有限公司 | Spring-extending-type, high-damping and automatic tensioner |
| CN106838165A (en) * | 2017-01-22 | 2017-06-13 | 宁波丰茂远东橡胶有限公司 | Equipped with the automatic tensioner for being arranged symmetrically formula damping unit |
Also Published As
| Publication number | Publication date |
|---|---|
| TR200302342T1 (en) | 2004-07-21 |
| ES2375355T3 (en) | 2012-02-29 |
| HUP0700112A2 (en) | 2007-05-02 |
| ATE529660T1 (en) | 2011-11-15 |
| WO2003098071A1 (en) | 2003-11-27 |
| RU2003135796A (en) | 2005-04-20 |
| CA2448919A1 (en) | 2003-11-27 |
| CN100489344C (en) | 2009-05-20 |
| AU2003228632A1 (en) | 2003-12-02 |
| KR20040020918A (en) | 2004-03-09 |
| BRPI0303389B1 (en) | 2015-06-23 |
| BR0303389A (en) | 2004-03-30 |
| TWI223695B (en) | 2004-11-11 |
| KR100649075B1 (en) | 2006-11-29 |
| TW200403403A (en) | 2004-03-01 |
| KR100626631B1 (en) | 2006-09-25 |
| EP1504204B1 (en) | 2011-10-19 |
| PL365542A1 (en) | 2005-01-10 |
| KR20060022731A (en) | 2006-03-10 |
| JP4009782B2 (en) | 2007-11-21 |
| JP2005520104A (en) | 2005-07-07 |
| PL208791B1 (en) | 2011-06-30 |
| US20030216204A1 (en) | 2003-11-20 |
| EP1504204A1 (en) | 2005-02-09 |
| US20050096168A1 (en) | 2005-05-05 |
| AU2003228632B2 (en) | 2006-08-03 |
| RU2258163C2 (en) | 2005-08-10 |
| CA2448919C (en) | 2007-09-25 |
| US7004863B2 (en) | 2006-02-28 |
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